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MW 100x30 / N38 - cylindrical magnet

cylindrical magnet

Catalog no 010002

GTIN/EAN: 5906301810025

5.00
Load capacity 215.17 kg / 2110.78 N Magnetic Induction 318.96 mT / 3190 Gs
Diameter Ø
100 mm [±0,1 mm]
Height
30 mm [±0,1 mm]
Weight
1767.15 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

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528.46 zł net / pcs

650.01 zł with VAT (23% VAT) / pcs

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Frequently asked questions

What is the maximum working temperature of a disc magnet?
Standard N-series grades work up to 80 °C. Grades N50, N52 and N54 have a lower limit of 60 °C, because coercivity falls as BHmax rises. Higher temperatures require the H (120 °C), SH (150 °C), UH (180 °C), EH (200 °C) or AH (230 °C) series. Within the working range the magnet loses about 0.11% of its induction per degree, and that loss is reversible.
What is the difference between N38, N42 and N52?
The number after N is the energy product BHmax. Moving from N38 to N52 raises it by several tens of percent, but the real holding force increases by roughly 20%, because force also depends on geometry and on the magnetic circuit. N52 costs about twice as much as N42, so for most mounting work N38–N42 is the best price-to-force ratio.
What is the dimensional tolerance?
±0.1 mm as standard, ±0.05 mm to order. The tolerance is stated next to the dimensions on every product page.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

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Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Product card - MW 100x30 / N38 - cylindrical magnet

Specification / characteristics - MW 100x30 / N38 - cylindrical magnet

properties
properties values
Cat. no. 010002
GTIN/EAN 5906301810025
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 100 mm [±0,1 mm]
Height 30 mm [±0,1 mm]
Weight 1767.15 g
Magnetization Direction ↑ axial
Load capacity ~ ? 215.17 kg / 2110.78 N
Magnetic Induction ~ ? 318.96 mT / 3190 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N38

Specification / characteristics MW 100x30 / N38 - cylindrical magnet
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Physical simulation of the magnet - data

The following values are the direct effect of a mathematical analysis. Values were calculated on models for the class Nd2Fe14B. Operational parameters may differ from theoretical values. Treat these data as a preliminary roadmap during assembly planning.

Table 1: Static force (pull vs distance) - characteristics
MW 100x30 / N38

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 3189 Gs
318.9 mT
 215.17 kg / 474.37 pounds
215170.0 g / 2110.8 N
 crushing
1 mm 3143 Gs
314.3 mT
 208.96 kg / 460.68 pounds
208959.6 g / 2049.9 N
 crushing
2 mm 3094 Gs
309.4 mT
 202.53 kg / 446.51 pounds
202531.7 g / 1986.8 N
 crushing
3 mm 3044 Gs
304.4 mT
 195.98 kg / 432.07 pounds
195982.5 g / 1922.6 N
 crushing
5 mm 2939 Gs
293.9 mT
 182.65 kg / 402.68 pounds
182651.7 g / 1791.8 N
 crushing
10 mm 2657 Gs
265.7 mT
 149.35 kg / 329.26 pounds
149349.8 g / 1465.1 N
 crushing
15 mm 2366 Gs
236.6 mT
 118.41 kg / 261.05 pounds
118412.6 g / 1161.6 N
 crushing
20 mm 2081 Gs
208.1 mT
 91.64 kg / 202.03 pounds
91640.5 g / 899.0 N
 crushing
30 mm 1573 Gs
157.3 mT
 52.34 kg / 115.40 pounds
52344.5 g / 513.5 N
 crushing
50 mm 874 Gs
87.4 mT
 16.14 kg / 35.58 pounds
16140.3 g / 158.3 N
 crushing
Magnetic force decreases sharply per each millimeter of distance. Keep in mind that even the smallest gap (e.g., contamination, paint, dust) noticeably reduces the pull force. Neodymiums operate most effectively during direct contact; air break nullifies the force. See how flashily the parameters drop, when the magnet does not touch flatly to the steel surface. When calculating the assembly, eliminate additional spacers.

Table 2: Sliding load (wall)
MW 100x30 / N38

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Stal (~0.2) 43.03 kg / 94.87 pounds
43034.0 g / 422.2 N
1 mm Stal (~0.2) 41.79 kg / 92.14 pounds
41792.0 g / 410.0 N
2 mm Stal (~0.2) 40.51 kg / 89.30 pounds
40506.0 g / 397.4 N
3 mm Stal (~0.2) 39.20 kg / 86.41 pounds
39196.0 g / 384.5 N
5 mm Stal (~0.2) 36.53 kg / 80.53 pounds
36530.0 g / 358.4 N
10 mm Stal (~0.2) 29.87 kg / 65.85 pounds
29870.0 g / 293.0 N
15 mm Stal (~0.2) 23.68 kg / 52.21 pounds
23682.0 g / 232.3 N
20 mm Stal (~0.2) 18.33 kg / 40.41 pounds
18328.0 g / 179.8 N
30 mm Stal (~0.2) 10.47 kg / 23.08 pounds
10468.0 g / 102.7 N
50 mm Stal (~0.2) 3.23 kg / 7.12 pounds
3228.0 g / 31.7 N
The table below shows the approximate weight limit sufficient to initiate the downward movement of the magnet vertically along a upright metal surface (considering standard friction). This value is relative to the air gap between the magnet and the surface.

Table 3: Vertical assembly (sliding) - vertical pull
MW 100x30 / N38

Surface type Friction coefficient / % Mocy Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% Nominalnej Siły
64.55 kg / 142.31 pounds
64551.0 g / 633.2 N
Painted steel (standard)
µ = 0.2 20% Nominalnej Siły
43.03 kg / 94.87 pounds
43034.0 g / 422.2 N
Oily/slippery steel
µ = 0.1 10% Nominalnej Siły
21.52 kg / 47.44 pounds
21517.0 g / 211.1 N
Magnet with anti-slip rubber
µ = 0.5 50% Nominalnej Siły
107.59 kg / 237.18 pounds
107585.0 g / 1055.4 N
When placing a magnet on a upright wall (e.g., a board), it will maintain just about 1/5 of its maximum pull force. Gravitational force as well as a low friction coefficient cause that holders slide down faster than they pop off the substrate. Planning a wall mount? Remember that the sliding force is significantly lower than the perpendicular breakaway force. On a painted metal, the element will slip down under a significantly smaller cargo. Using a rubber layer can significantly improve the result.

Table 4: Material efficiency (saturation) - power losses
MW 100x30 / N38

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
3%
 7.17 kg / 15.81 pounds
7172.3 g / 70.4 N
1 mm
8%
 17.93 kg / 39.53 pounds
17930.8 g / 175.9 N
2 mm
17%
 35.86 kg / 79.06 pounds
35861.7 g / 351.8 N
3 mm
25%
 53.79 kg / 118.59 pounds
53792.5 g / 527.7 N
5 mm
42%
 89.65 kg / 197.65 pounds
89654.2 g / 879.5 N
10 mm
83%
 179.31 kg / 395.31 pounds
179308.3 g / 1759.0 N
11 mm
92%
 197.24 kg / 434.84 pounds
197239.2 g / 1934.9 N
12 mm
100%
 215.17 kg / 474.37 pounds
215170.0 g / 2110.8 N
A thin metal plate is unable to conduct the entire magnetic field, which squanders power of the holder. If you mount a strong magnet to a thin surface, the field will pass right through and the pull force will drop sharply. To utilize 100% of this neodymium's potential, you require a sufficiently solid backing of steel. The material oversaturation means that on delicate walls (e.g., car bodies), the magnet holds weaker. We advise picking the steel cross-section based on the following data.

Table 5: Thermal stability (material behavior) - thermal limit
MW 100x30 / N38

Ambient temp. (°C) Power loss Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 215.17 kg / 474.37 pounds
215170.0 g / 2110.8 N
 OK
40 °C -2.2% 210.44 kg / 463.93 pounds
210436.3 g / 2064.4 N
 OK
60 °C -4.4% 205.70 kg / 453.50 pounds
205702.5 g / 2017.9 N
80 °C -6.6% 200.97 kg / 443.06 pounds
200968.8 g / 1971.5 N
100 °C -28.8% 153.20 kg / 337.75 pounds
153201.0 g / 1502.9 N
Ordinary NdFeB products irreversibly lose strength past the thermal threshold. Watch out for overheating – heat can permanently damage this magnet. As the temperature rises, the magnet's power temporarily drops. Refrain from using this magnet close to heaters exceeding its working range. Ignoring the limit will result in permanent loss of magnetism.
*Engineering note: Thermal stability depends not only on the material grade, as well as the dimension ratios. Low-profile magnets (low Pc) may lose charge permanently under lower heat stress than taller cylinders. Red status in the table signals permanent field degradation for this specific geometry.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 100x30 / N38

Gap (mm) Attraction (kg/lbs) (N-S) Sliding Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 492.55 kg / 1085.88 pounds
4 762 Gs
73.88 kg / 162.88 pounds
73882 g / 724.8 N
 N/A
1 mm 485.56 kg / 1070.47 pounds
6 333 Gs
72.83 kg / 160.57 pounds
72834 g / 714.5 N
 437.00 kg / 963.42 pounds
~0 Gs
2 mm 478.33 kg / 1054.54 pounds
6 286 Gs
71.75 kg / 158.18 pounds
71749 g / 703.9 N
 430.50 kg / 949.08 pounds
~0 Gs
3 mm 471.01 kg / 1038.40 pounds
6 238 Gs
70.65 kg / 155.76 pounds
70652 g / 693.1 N
 423.91 kg / 934.56 pounds
~0 Gs
5 mm 456.15 kg / 1005.64 pounds
6 139 Gs
68.42 kg / 150.85 pounds
68422 g / 671.2 N
 410.53 kg / 905.07 pounds
~0 Gs
10 mm 418.11 kg / 921.77 pounds
5 877 Gs
62.72 kg / 138.27 pounds
62716 g / 615.2 N
 376.30 kg / 829.59 pounds
~0 Gs
20 mm 341.88 kg / 753.71 pounds
5 314 Gs
51.28 kg / 113.06 pounds
51282 g / 503.1 N
 307.69 kg / 678.34 pounds
~0 Gs
50 mm 159.49 kg / 351.61 pounds
3 630 Gs
23.92 kg / 52.74 pounds
23923 g / 234.7 N
 143.54 kg / 316.45 pounds
~0 Gs
60 mm 119.82 kg / 264.16 pounds
3 146 Gs
17.97 kg / 39.62 pounds
17973 g / 176.3 N
 107.84 kg / 237.75 pounds
~0 Gs
70 mm 89.40 kg / 197.09 pounds
2 718 Gs
13.41 kg / 29.56 pounds
13410 g / 131.6 N
 80.46 kg / 177.38 pounds
~0 Gs
80 mm 66.51 kg / 146.64 pounds
2 344 Gs
9.98 kg / 22.00 pounds
9977 g / 97.9 N
 59.86 kg / 131.97 pounds
~0 Gs
90 mm 49.50 kg / 109.14 pounds
2 022 Gs
7.43 kg / 16.37 pounds
7426 g / 72.8 N
 44.55 kg / 98.22 pounds
~0 Gs
100 mm 36.95 kg / 81.45 pounds
1 747 Gs
5.54 kg / 12.22 pounds
5542 g / 54.4 N
 33.25 kg / 73.31 pounds
~0 Gs
Two magnetic products interact from a much further distance than a magnet and sheet combination. Such a system of magnet-to-magnet creates a more powerful interaction and a further horizon of performance. Designing a solid fastener? Use a pair of magnets instead of a neodymium and a striker plate. Remember that when bringing together two magnets, the pinch force is huge. The repulsion force is marginally weaker than the connection force, but still significant.
*The magnetic induction for N-N configuration reaches ~0 Gs at the midpoint of the gap (due to field cancellation).
* Results refer to friction force of a pair of same magnets (friction coefficient ~0.15 for Ni-Ni layer).

Table 7: Protective zones (electronics) - warnings
MW 100x30 / N38

Object / Device Limit (Gauss) / mT Safe distance
Pacemaker 5 Gs (0.5 mT) 44.0 cm
Hearing aid 10 Gs (1.0 mT) 34.5 cm
Timepiece 20 Gs (2.0 mT) 27.0 cm
Mobile device 40 Gs (4.0 mT) 21.0 cm
Remote 50 Gs (5.0 mT) 19.0 cm
Payment card 400 Gs (40.0 mT) 8.0 cm
HDD hard drive 600 Gs (60.0 mT) 6.5 cm
A strong magnetic field poses a serious hazard to electronic devices and medical implants. These NdFeB products generate a flux that prevents correct functioning of sensitive medical devices. Be aware: the unseen radiation acts through matter and glass. Special caution must be taken by people with cochlear implants and insulin pumps. The risk also applies to: mechanical watches, car keys, membranes, and screens. Do not place the magnet near cards, hard drives, or sensitive navigation tools.

Table 8: Impact energy (kinetic energy) - warning
MW 100x30 / N38

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 16.21 km/h
(4.50 m/s)
 17.91 J
30 mm 23.14 km/h
(6.43 m/s)
 36.50 J
50 mm 24.98 km/h
(6.94 m/s)
 42.54 J
100 mm 25.76 km/h
(7.16 m/s)
 45.24 J
Neodymium magnets are delicate – a collision with steel causes immediate chipping. Pay attention to connection velocity – a neodymium left loose becomes dangerous. Impact energy can destroy the magnet or injury to skin. Be sure to control the product during mounting so it doesn't hit violently against the metal. A collision at high speed ends with a crack of the neodymium. Use safety goggles when playing with powerful specimens.

Table 9: Surface protection spec
MW 100x30 / N38

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The SST (salt spray test) is an industry standard for determining coating lifespan in harsh conditions. Moisture resistance is crucial for installations in bathrooms or outdoors.

Table 10: Electrical data (Pc)
MW 100x30 / N38

Parameter Value SI Unit / Description
Magnetic Flux 269 425 Mx 2694.3 µWb
Pc Coefficient 0.40 Low (Flat)
Flux value emitted by the pole surface. Essential parameter in coil applications and motors. The Pc coefficient determines the working geometry.

Table 11: Submerged application
MW 100x30 / N38

Environment Effective steel pull Effect
Air (land) 215.17 kg Standard
Water (riverbed) 246.37 kg
(+31.20 kg buoyancy gain)
+14.5%
Warning: Remember to wipe the magnet thoroughly after removing it from water and apply a protective layer (e.g., oil) to avoid corrosion.
Water displaces steel, making heavy objects slightly lighter. As a result, your magnet will pull a heavier object from the bottom than if you lifted it in the air.

1. Shear force

*Warning: On a vertical wall, the magnet retains only a fraction of its max power.

2. Plate thickness effect

*Thin steel (e.g. 0.5mm PC case) severely weakens the holding force.

3. Temperature resistance

*For N38 material, the max working temp is 80°C.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.40

The chart above illustrates the magnetic characteristics of the material within the second quadrant of the hysteresis loop. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. A value of 0.42 is relatively low (typical for flat magnets), meaning the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Engineering data and GPSR

Material specification

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Sustainability

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010002-2026
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The presented product is an extremely powerful cylindrical magnet, made from durable NdFeB material, which, at dimensions of Ø100x30 mm, guarantees optimal power. This specific item is characterized by high dimensional repeatability and professional build quality, making it a perfect solution for professional engineers and designers. As a magnetic rod with impressive force (approx. 215.17 kg), this product is in stock from our warehouse in Poland, ensuring rapid order fulfillment. Additionally, its triple-layer Ni-Cu-Ni coating effectively protects it against corrosion in standard operating conditions, guaranteeing an aesthetic appearance and durability for years.
This model is created for building generators, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the pull force of 2110.78 N with a weight of only 1767.15 g, this rod is indispensable in electronics and wherever every gram matters.
Since our magnets have a tolerance of ±0.1mm, the best method is to glue them into holes with a slightly larger diameter (e.g., 100.1 mm) using epoxy glues. To ensure stability in industry, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Grade N38 is the most frequently chosen standard for professional neodymium magnets, offering an optimal price-to-power ratio and high resistance to demagnetization. If you need even stronger magnets in the same volume (Ø100x30), contact us regarding higher grades (e.g., N50, N52), however, N38 is the standard in continuous sale in our warehouse.
This model is characterized by dimensions Ø100x30 mm, which, at a weight of 1767.15 g, makes it an element with impressive magnetic energy density. The value of 2110.78 N means that the magnet is capable of holding a weight many times exceeding its own mass of 1767.15 g. The product has a [NiCuNi] coating, which protects the surface against oxidation, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 100 mm. Such an arrangement is most desirable when connecting magnets in stacks (e.g., in filters) or when mounting in sockets at the bottom of a hole. On request, we can also produce versions magnetized through the diameter if your project requires it.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

Apart from their consistent magnetic energy, neodymium magnets have these key benefits:
  • They have unchanged lifting capacity, and over nearly ten years their performance decreases symbolically – ~1% (according to theory),
  • They do not lose their magnetic properties even under close interference source,
  • The use of an refined coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • The surface of neodymium magnets generates a strong magnetic field – this is one of their assets,
  • Thanks to resistance to high temperature, they are able to function (depending on the shape) even at temperatures up to 230°C and higher...
  • Possibility of precise machining and optimizing to complex requirements,
  • Fundamental importance in electronics industry – they are utilized in data components, electric motors, advanced medical instruments, and industrial machines.
  • Compactness – despite small sizes they generate large force, making them ideal for precision applications

Limitations

Problematic aspects of neodymium magnets and proposals for their use:
  • At strong impacts they can crack, therefore we recommend placing them in steel cases. A metal housing provides additional protection against damage and increases the magnet's durability.
  • When exposed to high temperature, neodymium magnets experience a drop in strength. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
  • They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Limited ability of creating nuts in the magnet and complicated forms - preferred is cover - mounting mechanism.
  • Possible danger resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, tiny parts of these magnets can be problematic in diagnostics medical in case of swallowing.
  • Due to expensive raw materials, their price exceeds standard values,

Pull force analysis

Detachment force of the magnet in optimal conditions – what it depends on?

Breakaway force was defined for the most favorable conditions, including:
  • using a base made of low-carbon steel, acting as a ideal flux conductor
  • with a cross-section no less than 10 mm
  • characterized by smoothness
  • under conditions of gap-free contact (metal-to-metal)
  • for force applied at a right angle (in the magnet axis)
  • at ambient temperature room level

Magnet lifting force in use – key factors

In real-world applications, the real power results from many variables, ranked from the most important:
  • Gap between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Force direction – note that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops drastically, often to levels of 20-30% of the nominal value.
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the attraction force (the magnet "punches through" it).
  • Steel grade – ideal substrate is pure iron steel. Stainless steels may generate lower lifting capacity.
  • Surface finish – full contact is possible only on polished steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
  • Thermal environment – heating the magnet results in weakening of induction. Check the thermal limit for a given model.

Lifting capacity testing was carried out on plates with a smooth surface of suitable thickness, under a perpendicular pulling force, in contrast under parallel forces the lifting capacity is smaller. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.

Precautions when working with neodymium magnets
Implant safety

Warning for patients: Strong magnetic fields disrupt medical devices. Keep minimum 30 cm distance or request help to handle the magnets.

Keep away from electronics

GPS units and smartphones are highly sensitive to magnetism. Close proximity with a strong magnet can ruin the internal compass in your phone.

Immense force

Be careful. Neodymium magnets attract from a distance and connect with massive power, often faster than you can move away.

Machining danger

Fire warning: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this risks ignition.

Do not overheat magnets

Monitor thermal conditions. Exposing the magnet to high heat will destroy its magnetic structure and pulling force.

Magnet fragility

Neodymium magnets are ceramic materials, which means they are prone to chipping. Impact of two magnets will cause them cracking into shards.

Safe distance

Do not bring magnets near a wallet, laptop, or TV. The magnetism can destroy these devices and wipe information from cards.

Sensitization to coating

It is widely known that nickel (standard magnet coating) is a potent allergen. For allergy sufferers, prevent direct skin contact and choose encased magnets.

Choking Hazard

Adult use only. Tiny parts pose a choking risk, causing intestinal necrosis. Keep away from children and animals.

Crushing risk

Pinching hazard: The attraction force is so immense that it can cause hematomas, crushing, and even bone fractures. Protective gloves are recommended.

Warning! Learn more about risks in the article: Safety of working with magnets.